package wabjava;

public class MainClass {

    public static void main (String args[ ])
    { 
       System.out.println("你好，只需编译我") ;   //命令行窗口输出"你好，只需编译我"
       A1 a=new A1();
       a.fA1();
       B b=new B();
       b.fB();
    }
}
 class A1
{
     void fA1()
     {
          System.out.println("I am A1") ;   //命令行窗口输出"I am A"
     }
}
 class B
{
   void fB()
     {
   	System.out.println("I am B") ;    //命令行窗口输出"I am B"
     }
}
 class C
{
   void fC()
     {
   	System.out.println("I am c") ;    //命令行窗口输出"I am C"
     }
}
